package d0320;

class Book {private String name;private int Nub = 000;private float price;private static int num = 0;private static int sum = 0;public Book(String name, float price, int num) { this.sum = this.sum + num; this.Nub = sum; this.name = name; this.price = price; this.num = num;}public void print() { System.out.println("书名: " + name + "\t" + "编号： "+ Nub + "\t" + "价格： " + price + "\t"+ "册数： " + num); System.out.println("\n" + "总册书为:" + sum);}
}

public class book {
    public static void main(String[] args) {
        Book book1 = new Book("Java开发实战经典", 100.8f, 10);
        book1.print();
        Book book2 = new Book("Java大学实用教程", 60.5f, 4);
        book2.print();
        Book book3 = new Book("名侦探柯南", 78.0f, 6);
        book3.print();
        Book book4 = new Book("JavaEE基础实用教程", 36.7f, 10);
        book4.print();
    }
}